/*
 *  Copyright 2008 Danny Lagrouw
 *  
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *  
 *      http://www.apache.org/licenses/LICENSE-2.0
 *  
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License. 
 */
package org.bastion.example.domain;

import java.util.Date;

public class Period {

	private static final int SECONDS_PER_DAY = 24 * 3600 * 1000;

	private Date startDate;
	
	private Date endDate;

	private Period() {}
	
	public Period(Date startDate, Date endDate) {
		super();
		this.startDate = startDate;
		this.endDate = endDate;
	}

	public Period(Date startDate, int days) {
		super();
		this.startDate = startDate;
		this.endDate = new Date(startDate.getTime() + (SECONDS_PER_DAY * days));
	}

	public Date getStartDate() {
		return startDate;
	}

	public Date getEndDate() {
		return endDate;
	}

	public int getDays() {
		return (int) ((endDate.getTime() - startDate.getTime()) / (SECONDS_PER_DAY));
	}

	@Override
	public String toString() {
		return startDate + " - " + endDate;
	}
	
	public boolean overlaps(Period period) {
		return period.getEndDate().after(this.getStartDate()) && period.getStartDate().before(this.getEndDate());
	}

}
